How is C) And D) Solved?

Savings needed for Health-Care Expenses During Retirement Age at Death Savings Needed 80 $219,000 85 $307,000 90 $409,000 95 $524,000 100 $656,000 Source: Employee Benefit Research Institute a.) Use a graphing calculator or Desmos to create a scatterplot of the data. Upload an image of that b.) Use the graphing utility's regression option to compare the following models: y=abx, y= a + binx, y= ax+b, and y = ax. Submit a sketch of image of each. c.) Discuss how each of the regression curves in part b fit the data by looking at the correlation constant r. d.) Use the model (equation) with the best correlation constant, r from part c and predict The savings needed at retirement age of 65